RETRANSMISSION METHOD AND DEVICE IN DIRECT COMMUNICATION BETWEEN TERMINALS RECEIVING TRANSMISSION CONTROL INFORMATION FROM A BASE STATION AND PERFORMING TRANSMISSION RESOURCE ALLOCATION AND RECEIVING A RECEIPT ACKNOWLEDGEMENT MESSAGE FROM THE OTHER TERMINAL

摘要

PURPOSE: Retransmission method and device in direct communication between terminals are provided not to lose communication infrastructure with cellular base station and to solve generated errors with an HARQ (Hybrid Automatic Repeat request) control method.;CONSTITUTION: A transmission device (110) includes a reception unit (111), a transmission unit (113) and a control unit (115). The reception unit supplies the information to the control unit by receiving transmission control information and reception control information from a base station after avoiding a synchronization signal range and provides the message to the control unit by receiving a reception confirmation message from an opponent terminal. The transmission unit transmits data and a scheduling request message based on control of the control unit. The control unit allocates a transmission resource to an uplink based on the transmission control information supplied from the reception unit and transmits the data to the opponent terminal.;COPYRIGHT KIPO 2013;[Reference numerals] (111) Reception unit; (113) Transmission unit; (115) Control unit